Home > Copper Nickel > Copper Nickel 70/30 Flanges
At Nasir Nickel Alloys in Manama, Bahrain, Copper Nickel 70/30 Flanges are designed to provide outstanding corrosion resistance, mechanical strength, and long-term reliability for demanding marine, chemical, and industrial applications. Manufactured from a high-quality copper-nickel alloy, these flanges offer superior resistance to seawater, brackish water, and chloride-induced corrosion while maintaining excellent structural integrity under high-pressure conditions. Precision-engineered for leak-proof connections and consistent performance, Copper Nickel 70/30 Flanges are ideal for seawater piping, desalination plants, heat exchangers, marine systems, and offshore platforms, delivering durable, efficient, and reliable solutions in highly corrosive environments.
Copper Nickel 70/30 Flanges are primarily composed of approximately 70% copper and 30% nickel, with minor additions of iron and manganese to enhance strength and corrosion resistance. This composition provides exceptional resistance to seawater, brackish water, and biofouling, along with excellent pitting and crevice corrosion resistance. Mechanically, these flanges offer good tensile and yield strength, toughness, and fatigue resistance under fluctuating pressures and thermal cycling. With dimensional stability and structural integrity in aggressive marine and industrial environments, Copper Nickel 70/30 Flanges combine corrosion resistance with mechanical durability for reliable long-term performance.
| Size | : | ½” to 12″ |
| Specification | : | ASTM / ASME SB 61 / 62 / 151 / 152. |
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Class | : | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN. |
| Dimensions | : | ANSI/ASME B16.5, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Grades | : | UNS C71500 (CU -NI- 70/30) |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Copper Nickel 70/30 | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.323 lb/in3 at 68 F | 0.323 lb/in3 at 68 F | 50000 psi | 20000 psi | 30 % |
At Nasir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Copper Nickel 70/30 Flanges in Manama, Bahrain, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Bahrain, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Copper Nickel 70/30 Flanges are widely used in industries requiring high corrosion resistance, mechanical strength, and durability in marine and seawater environments. They are ideal for seawater piping systems, desalination plants, heat exchangers, shipbuilding, offshore platforms, and industrial pipelines. Their resistance to corrosion, biofouling, and chloride-rich conditions makes them suitable for extreme marine and industrial applications. These flanges provide secure, leak-proof connections in piping and process systems, ensuring safe and consistent operation. By delivering long-term performance under aggressive conditions, Copper Nickel 70/30 Flanges ensure durable, efficient, and reliable operation across chemical, petrochemical, marine, and industrial industries.
